Question

If x=2a+1 and y=a-1 is a solution of equation 2x-3y+5=0 than find the value of a

Answer 1

X=2a+1
Y=a-1
Substitute in equation,
2x-3y+5=0

2(2a+1)-3(a-1)+5=0
4a+2-3a+3+5=0
a+2+3+5=0
a+10=0
a=-10

Answer:
a=-10